Casino Variance Calculator
Understand the volatility and risk of casino games. Calculate expected outcomes, variance, and confidence intervals for informed gambling decisions.
Enter game details to calculate variance and expected outcomes
Understanding Casino Game Variance
Steady, predictable results with smaller swings
- • Blackjack
- • Baccarat
- • Craps (Pass Line)
- • European Roulette
Best for: Conservative players, longer sessions, smaller bankrolls
Moderate swings with balanced risk/reward
- • American Roulette
- • Pai Gow Poker
- • Some Slot Machines
- • Caribbean Stud
Best for: Moderate risk tolerance, medium bankrolls
Large swings with potential for big wins/losses
- • Video Poker
- • Progressive Slots
- • Keno
- • Side Bets
Best for: Risk-tolerant players, larger bankrolls, short sessions
| Game | House Edge | Variance | Volatility |
|---|---|---|---|
| Blackjack (Basic Strategy) | 0.5% | 1.3 | Low |
| Baccarat (Banker) | 1.06% | 0.93 | Low |
| Craps (Pass Line) | 1.4% | 1.0 | Low |
| European Roulette | 2.7% | 0.95 | Medium |
| Slots (Average) | 5.0% | 4.0 | High |
| Video Poker (Jacks or Better) | 0.5% | 19.5 | Very High |
Understanding the Results
These calculations are based on mathematical probabilities and assume perfect play. Actual results will vary and can differ significantly from expected values.
High variance games can produce extreme results. Even with favorable odds, you can experience significant losses in the short term.